#region License
// Copyright (c) 2007 James Newton-King
//
// Permission is hereby granted, free of charge, to any person
// obtaining a copy of this software and associated documentation
// files (the "Software"), to deal in the Software without
// restriction, including without limitation the rights to use,
// copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the
// Software is furnished to do so, subject to the following
// conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
// OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
// HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
// WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
// OTHER DEALINGS IN THE SOFTWARE.
#endregion

using System;
using System.Collections.Generic;
using System.Text;
using System.ComponentModel;
using System.Resources;
using System.Reflection;
using JHSoft.Util.Miscellaneous;

namespace JHSoft.Util.Resources
{
  [AttributeUsage(AttributeTargets.All)]
  public abstract class ResourceDescriptionAttribute : DescriptionAttribute
  {
    private bool _localized;
    private IResourceGetter _resourceGetter;

    protected IResourceGetter ResourceGetter
    {
      get
      {
        if (_resourceGetter == null)
          _resourceGetter = GetResourceGetter();

        return _resourceGetter;
      }
    }

    public override object TypeId
    {
      get { return typeof(DescriptionAttribute); }
    }

    public override string Description
    {
      get
      {
        if (!_localized)
        {
          _localized = true;
          DescriptionValue = ResourceGetter.GetString(base.Description);
        }

        return base.Description;
      }
    }

    public ResourceDescriptionAttribute(string description)
      : base(description)
    {
    }

    protected abstract IResourceGetter GetResourceGetter();
  }
}